/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package terra.network;

import java.net.InetSocketAddress;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.TimeUnit;

import org.jboss.netty.bootstrap.ClientBootstrap;
import org.jboss.netty.channel.ChannelFuture;
import org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory;
import org.jboss.netty.handler.execution.OrderedMemoryAwareThreadPoolExecutor;

import terra.BootStrap;
import terra.NetworkConfig;

public class Client{

	public ClientBootstrap bootstrap;

	public void init() {
    	if (BootStrap.mode != BootStrap.CLIENT_MODE)
    		return;
    	ExecutorService bossExec = new OrderedMemoryAwareThreadPoolExecutor(1, 0, 0, 60, TimeUnit.SECONDS);
    	ExecutorService ioExec = new OrderedMemoryAwareThreadPoolExecutor(1, 0, 0, 60, TimeUnit.SECONDS);
    	
        bootstrap = new ClientBootstrap(new NioClientSocketChannelFactory(bossExec,ioExec));
        bootstrap.setPipelineFactory(new PipelineFactory());
        bootstrap.setOption("sendBufferSize", NetworkConfig.sendBufferSize); 
        bootstrap.setOption("receiveBufferSize",  NetworkConfig.receiveBufferSize);
        bootstrap.setOption("tcpNoDelay", NetworkConfig.tcpNoDelay);
    }

	public ChannelFuture connect() {
    	if (BootStrap.mode != BootStrap.CLIENT_MODE)
    		return null;
		return bootstrap.connect(new InetSocketAddress(NetworkConfig.hostName, NetworkConfig.port));
	}
	
	private static Client instance;
	public static Client getInstance() {
		if (instance == null)
			instance = new Client();
		return instance;
	}
	
}
